Part I considered (1) the history of globalism of nations with hegemony and its influences on other countries and (2) the overall system of business management in Germany in each major period as a structural framework for conditions that define the established methods of business management within the characteristics of capitalism. Based on the discussions in Part I, Part II explores business management in Germany during the Second Reich, the period from the shift to monopolistic capitalism to the end of World War I. This chapter considers enterprise concentration, the building of monopolistic capitalism, and changes in business management with such phenomena from the perspective of international comparison with the United States (US) and industrial comparison. It first examines the first movement of enterprise concentration and its background. This chapter then analyzes the processes of concentration and the characteristics of monopoly formation that differ from those in the US. Furthermore, a monopolistic regulation policy is considered concerning trade and industrial policies. Moreover, the significance and limitations of enterprise concentration concerning business management problems will be clarified through a comparison with experiences in the US.